Building-block.



PATENTED MAY 2l, 1907.

P. W. OBLSGHLAEGER. BUILDING BLOCK.

APPLIOATION FILED PEB. 12, 1906'.

. or the like material, affording a length, so

' illustrated .in Fig. 4. A ertures 3 3 are of are of staggering arrangement to make the UNITED STATES PATENT oEEICE.

FRIEDRICH W. CELSCHLAEGER, CF' WATERTCWN, WISCONSIN.

l 'BUILDING-eLook.

No. 854,708. y

Specification of Letters Patent.

Patented May 21, 1907.

Application tiled February 12, 1906. Serial No. 300,651.

To (LN, whom, it may concern.-

' Be it known that I, FRIEDRICH W. OEL- sCHLAEGER, a citizen of the United States, residing at the city of Watertown, in the county of Jefferson and State of Wisconsin, have invented certain new and useful Improvements in Building-Blocks; and I do ereby declare the following to be aA clear and exact description of the invention, such as will enable others skilled 'in the art t0 which it pertains to make and use the same, `reference bein had to the accompanying drawings, whic form a part of thisspecication. d

The purpose of this invention is to provide -an improved building-block of tile, concrete,

i better protection against frost and having other structural advantages not aforded by concrete building blocks heretofore made, as hereinafter described and claimed.

Referring to the accompanying drawing, Figure 1 is' a perspective view of a building block embodying my invention. Fig. 2 is a plan view of the to of the block. Fig. 3 is a side view of the blbck. Fig. 4 is a vertical sectional view of a Wall constructed of building blocks embodying my invention, taken at line A A, Fig. 2. Fi 5 is a side elevation of a wall, constructecgl of building4 blocks embodying my invention, partbeing in section at line B B, Fig.` 2.

Referring to the accom anying drawing, there is shown a concrete lock with a plurality of apertures, oblong in horizontal section, extending vertically through the block, of which apertures 1 and 2 are of unequal arranged that when blocks are placed in wall, joints broken at halves as is customary in ordinary construction of walls, a continuous airspace will be formed, as

equal len th so arrange that when blocks are place in Wall, oints broken at halves as is customary in ordinary construction of walls, will register to form vertical airspaces ent of lthe continuous airspace formed by apertures 1 and 2 heretofore described.

The 'transverse webs 4 and 5, connecting the outside walls 11 of the block with an intermediate or central web 12, of which rib 6, forms a part\and in which is located recess 7,

path forfrost to penetrate the wall as long as i possible. Each block is provided with a rib 6 projecting and running along one edge of sald central Web extending the length of sald web, and along one end of the block, in both cases to a point where the recess or groove 7, begins, Which recess or groove 7 is cut into and extends along the o posite side of said central web and along tlie opposite side or end of said block, being so located that when the blocks are put in position in wall, said rib 6 will fit into recess 7. Rib 6 only projects one half of the depth of recess 7 and thereby when put in position in wall will form a continuous airspace, at right angles, encircling each block at the central ortion thereof as illustrated in Fig. 5. T 's airspace is particularly of great value to take care of any moisture that may form by reason of une ual temperature on the inside and outside of t e structure, thus arresting dampness that would otherwise affect the inside of a building wall in articular.

The ends of the block are closed and therefore of greater strength than so called o enend apertures which are easily broken o by ordinary handling. The corrugations 8 on ends of block are to give the mortar the largest possible binding surface. The continuous airspace formed by apertures 1 and 2 as illustrated in Fig. 4,has the advantage over single, vertical airs aces in that, it will prevent the breaking of tlhe block b accumulation of gases within the wall, for w ich reason single, vertical air spaces are objectionable. Another advantage is,-the web, 5,-and the end webs 9 and 10, are totally encircled by air, by

reason of apertures 1 and 2, thereby making italmost impossible for frost to penetrate to the'inside of the wall. In the construction of a wall it is preferable to use the block so that airspacesl and 2 will be toward the inside of building, however this is not necessary.

What I claim as my invention and desire to secure by Letters Patent, is-

1. The hereindescribed building block comprising side Walls, an intermediate longitudinal web, and a plurality of transverse webs, there being formed by said walls and webs a plurality of vertical air spaces, the said intermediate Web' having a projecting rib extending along one end and one edge thereof and also having a groove extending along the opposite end and edge thereof to receive the ribs of adjacent corres onding blocks, and the groove being deeper tIhan the IIO depth of the rib whereby there is formed an additional air space extending longitudinally and verticall of the block.

2.i A building Wall construction embodying a plurality of similar blocks, each of said blocks com rising side Walls, an intermediate longitudina web, and a 1plurality of transverse Webs, Wherebgf a urality of vertical air s aces are forme an certain air spaces of one lock bein in register with certain other air spaces of t e blocks next above and below, said intermediate web having a rib prodeeper than thel said rib whereby there is formed an air space surrounding each ofthe several blocks. l

FRIEDRICH W. OELSCHLAEGER.

Witnesses:`

J. A. MAsTERsoN, A. W. BROWN. 

